________________________________________________________5 INTRODUCTION_____________________________________________________5 RHEOLOGICAL MODELS________________________________________________9 Bagnold's Original Models for Grain Flows_______________________________ 9 Takahashi and Chen Models for Debris Flow and Debris Avalanche _______________ 10 McTigue, Savage, Goodman and Cowin Models for D...

The French Atlantic marshlands, reclaimed since the Middle Age, have been successively used for extensive grazing and more recently for cereal cultivation from 1970. The soils have acquired specific properties which have been induced by the successive reclaiming and drainage works and by the response of the clay dominant primary sediments, that is, structure, moisture, and salinity profiles. Ba...

We report laboratory experiments to investigate the role of gas desorption, stress level and loading rate on the mechanical behavior of methane infiltrated coal. Two suites of experiments are carried out. The first suite of experiments is conducted on coal (Lower Kittanning seam, West Virginia) at a confining stress of 2 MPa and methane pore pressures in the fracture of 1 MPa to examine the rol...